Is CVE-2014-1776 actively exploited?

CVE-2014-1776 has no public evidence of in-the-wild exploitation as of 2025-10-22.

What is the CVSS score for CVE-2014-1776?

CVE-2014-1776 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2014-1776?

Patch guidance is available from microsoft security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2014-1776.

Fix CVE-2014-1776 - CRITICAL microsoft internet explorer

Q: Which products are affected by CVE-2014-1776?

6 products: microsoft internet explorer, microsoft internet explorer, microsoft internet explorer, microsoft internet explorer, microsoft internet explorer, and 1 more.

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6 through 11 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via vectors related to the CMarkup::IsConnectedToPrimaryMarkup function, as exploited in the wild in April 2014. NOTE: this issue originally emphasized VGX.DLL, but Microsoft clarified that "VGX.DLL does not contain the vulnerable code leveraged in this exploit. Disabling VGX.DLL is an exploit-specific workaround that provides an immediate, effective workaround to help block known attacks."

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: MICROSOFT
Published: 4/27/2014
Last Modified: 10/22/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

microsoft : internet_explorermicrosoft : internet_explorermicrosoft : internet_explorermicrosoft : internet_explorermicrosoft : internet_explorermicrosoft : internet_explorer

Remediation Guidance

Executive Summary

View on NIST NVD